Re: {Chrysler 300} 300K Ram Brakes Fixed!

[John Grady <jkg@xxxxxxxxxxxxxxxxx>]

This is really good conceptual input . Unlike when the pedal is directly connected to the master , where you feel the MC  leakage if/ as the seals leak ( pedal descends slowly) , the two steps of the Bendix remote booster prevent you from knowing that . The master on the pedal linkage  would stay up , while the one in the booster would bypass fluid and drop , you would not know clearly that was happening . 

Great input , thank you ; super careful inspection of second master is critical … 

Jkg 

Sent from my iPhone

On Oct 23, 2022, at 1:47 AM, 'Mike Cortel' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:



I had posted back in May having brake problems on the K after having the remote booster rebuilt by Power Brake Exchange in Pittsburgh PA, I tried all the different suggestions offered and continued to have the same issue having brakes when the car first starts up, but after a couple of stops the brakes would not hold. My frustration set back in and the car sat over the summer. In Sept I decided to tackle the issue once again. I considered taking the booster back to Power Brake Exchange but decided against it. 

Since there was not any other re-builders that are relatively close to me I nervously decided I would have to send the booster to the west coast. I check with Booster Dewy in Oregon. I gave them the background and they said they would have to get back with me after checking with their re-builder. Never heard back. 

Then I reached out to Karps Power Brake Service in Chino,CA. Jeff said that they would be able to test the booster before disassembly and let me know. So I decided to send the booster to Karps. Two weeks went by and I received a call from Jeff. He said that while testing the booster it was working but acting funny. They disassembled the booster and found that one of the seals / o-ring in the slave cylinder did not appear right. He felt that this was allowing pressurized brake fluid to leak back towards the master cylinder. They replace the seal/o-ring in question, checked out the rest of the booster and shipped it back. 

Today I was able to get out to the garage and reinstall the booster, pressure bled the system and crossed my fingers. 

Now I have brakes that hold!  Thanks to Jeff at Karps, And it just in time to put the car away for the upcoming winter! 

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